Concept explainers
(a)
To find:the expression for the number of centimeters in 200 inches.
(a)
Answer to Problem 37HP
The expression for number of centimeters in 200 inches is
There are 508 cm in 200 inches.
Explanation of Solution
Given:
One package contains 350 centimeters of trim.
The second package contains 200 inches of trim.
Calculation:
Now, 1 inch ≈ 2.54 cm
Then, to find number of cm in 200 inches, multiply 200 by the number of cm in 1 inch.
That is,
Thus the expression for number of centimeters in 200 inches is
And there are 508 cm in 200 inches.
Conclusion:
Thus the expression for number of centimeters in 200 inches is
There are 508 cm in 200 inches.
(b)
To find: The total number of centimeters of trim in two packages.
(b)
Answer to Problem 37HP
Thus, total number of centimeters in the two packages
Explanation of Solution
Given:
One package contains 350 centimeters of trim. The second package contains 200 inches of trim.
Calculation:
Total number of centimeters in the two packages is equal to the sum of number of centimeters in the first package (given in question) and number of centimeters in the second package (obtained in part (a))
Thus, total number of centimeters in the two packages =
Conclusion:
Therefore, total number of centimeters in the two packages =
(c)
To find: the number of packages of trim that have thesame amount of trim from part b
(c)
Answer to Problem 37HP
Thus, he needs to buy about 4 packages of 90 inches trim.
Explanation of Solution
Given:
One package contains 350 centimeters of trim. The second package contains 200 inches of trim.
Calculation:
Leah wants to buy 858 cm of trim in total.
If he buyspackages which contains 90 inches of trims each, then find total number of such packages that he needs to buy to have total 858 cm of trim.
Since, 1 inch = 2.54 cm
Then, number of cm in 90 inches is.
90 inch = 90(2.54) cm
≈ 229 cm
That is, 1 package contains nearly 229 cm of trim.
To find the number of packages that he needs to buy to have 858 cm of trim, divide 858 by 229.
Total number of packages he needs to buy is given by
Thus, he needs to buy about 4 packages of 90 inches trim.
Conclusion:
Therefore, he needs to buy about 4 packages of 90 inches trim
Chapter 1 Solutions
Pre-Algebra, Student Edition
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